Wear characteristics of patterned and un-patterned tetrahedral amorphous carbon film in the presence of synthetic and bio based lubricants

Arslan, Ahmed and Quazi, Moinuddin Mohammed and Masjuki, Haji Hassan and Kalam, Md. Abul and Varman, Mahendra and Zulkifli, Nurin Wahidah Mohd and Jamshaid, Muhammad and Mandalan, S.M. and Gohar, Ghulam Abbas and Gulzar, Mubashir and Alwi, Azham and Yarmand, Hooman and Mustafa, Maria S. (2018) Wear characteristics of patterned and un-patterned tetrahedral amorphous carbon film in the presence of synthetic and bio based lubricants. Materials Research Express, 6 (3). 036414. ISSN 2053-1591

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Official URL: https://doi.org/10.1088/2053-1591/aaf74d

Abstract

In this article, wear performance of patterned and non-patterned tetrahedral carbon thin film (ta-C) is compared in the presence of various lubricants. For this purpose, wear tests were conducted at temperatures (40 °C-125 °C) which are normally found during automotive engine operation. Wear test were conducted at 100 N load and 120 min. The results showed that bio-based lubricant show better wear performance at 40 and 80 °C compared to PAO lubricant for both laser patterned and non-patterned ta-C thin film. However, at the temperature of 125 °C, PAO showed better wear performance than palm based TMP ester. This can be because of unstable film formation at higher temperatures in case of bio-based lubricant. It was also found that patterned ta-C thin films shows higher wear resistance than non-patterned thin film. This can be because of micro pores which can provide lubricant, capture micro and nano wear particle and behave as micro hydrodynamic bearings.

Item Type: Article
Uncontrolled Keywords: DLC coatings; palm based trimethylolpropane; polyalphaolefin; Wear characteristics
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Jan 2019 03:49
Last Modified: 23 Jan 2019 03:49
URI: http://eprints.um.edu.my/id/eprint/20116

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